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engines/tetraedge/te/te_zlib_jpeg.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "tetraedge/te/te_zlib_jpeg.h"
+#include "common/substream.h"
+#include "common/compression/deflate.h"
+
+namespace Tetraedge {
+
+TeZlibJpeg::TeZlibJpeg() {
+}
+
+TeZlibJpeg::~TeZlibJpeg() {
+}
+
+bool TeZlibJpeg::load(Common::SeekableReadStream &stream) {
+	uint32 compressedSize = stream.readUint32LE();
+	if (compressedSize > stream.size()) {
+		warning("[TeImage::load] invalid size %d (file size %d)", compressedSize, (int)stream.size());
+		return false;
+	}
+	uint32 uncompressedSize = stream.readUint32LE();
+	Common::SeekableSubReadStream *substream = new Common::SeekableSubReadStream(&stream, stream.pos(), stream.size());
+	Common::SeekableReadStream *zlibStream = Common::wrapCompressedReadStream(substream, DisposeAfterUse::YES, uncompressedSize);
+	bool result = TeJpeg::load(*zlibStream);
+	delete zlibStream;
+	return result;
+}
+
+/*static*/
+bool TeZlibJpeg::matchExtension(const Common::String &extn) {
+	return extn == "jpeg.zlib";
+}
+
+} // end namespace Tetraedge